Linotype-machine.



W. G. WHITE.

LINOTYPE MACHINE.

APPLICATION 11.21) JUNE 18, 1912.

Patented Aug. 25, 1914.

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a 0% na w W W. G. WHITE. LINOTYPE MACHINE.

APPLICATION FILED JUNE 18, 1912.

Patemrefi Aug. 25, W14.

2 SHEBTSSEEET 2.

WITNESSES: v I -|HV'ENTOR Y Wavlman Gl Vh we.

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mnlmd v in imh l'vfvrvnz is heldfrom IOttlblOll by a pin 17 on the cam which cooperates With a toothed bar 18, the weight of the cam being so distributed that the projection 17 thereon will remain in contact with the toothed bar 18 until the cam yoke and its cam descend descent of the cam also bringing it into contact with the rotating roller 13, causing the cam to rotate, and owing to the shape of the cam, the cam yoke will be first elevated and then lowered to its initial position, causing actuation of the escapement 2 to deliver a matrix from the magazine. The operation of each cam and cam yoke is'controlled by the respective key bar 5 acting on its respective bell-crank lever 14. I

One particular form of escapement actuating mechanism has been shown and described as an example, but the invention is not limited in this respect as any et uivalent mechanism may be employed for t is purpose. The keyboard lock provided by the present invention operates preferably on a suitable part of the keyboard whereby accidental setting into operation of the escapcment actuating mechanism is prevented.

In the preferred embodiment of the invention? the keyboard is locked from actuation except when a magazine, is in operative position. In the construction shown. the keyboard controllin means embodies a look ing bar or member 9 which is supported by a rail 20 the ends of which are secured to the stationary sidc frames 21. The locking bar or member 19 is mounted at the under side of the rail 20 and is movable in a direction toward and from the row of key bars 5, each key her having a shoulder or projection 22 which is adapted to abut against the look ing bar or member 19 when the latter is in looking, position. thereby preventing actuation of any of the key bars, although When the locking bar or member 19 is retracted, the key bars are free to operate. Difi erent means may be employed for mounting and operating the locking bar or member 19. in the present instance. this bar or member is provided with transverse slots 2? and screws 24 are attached to the rail 20 and operate in said slots to LUldfl the locking bar in its movements. Bell-crank levers 25 are also pivotedon an axis 26 toward the opposite ends of the rail 20. one end 27 of each bellcrank operating ina recess or slot 28 formed in the respective end of the locking ba and a spring 29 operates on each bell-crank producing a normaltendency to shift the locking bar or member into locked position and to retain the same in such position. The bell cranks 25 are controlled by a pair of push rods 30 which are guided to move vertically by the bars 31., the lower ends of these push rods resting on the arms of the hell I cranks while the upper ends of these push $5;

rods are adapted to be engaged by a suitable on the push rods 30, allowin :uwasie part of the magazine when the latter is placed in operative position. The placing of a magazlne in operative position causes depression of the push rods 30, the latter operating on the bell cranks .25 to retract the locking bar or member 19 and to retain the latter in a position which will clear the )aths of movement of the shoulders 22 of the key bars, and while the magazineis in such position, the keyboard Will be unlocked and may be operated freely. Removal of a magazine, however, will relieve the pressure the latter to rise under the influence of tie springs 29; the ioeking bar or member 19 being) simultaneously and automatically shift d into the paths of movement of the shoulde s 22 of the key bars, thereby locking the keyboard from operation. The keyboard will remain locked until a magazine is placed in position on the machine, the placing of a magazine in position causing depression of the push rods 30 as before stated. and the keyboard is then automatically unlocked.

What it claim is:-

1. in a linotype machine the combination of a keyboard mechanism. a removable matrix magazine. cscapcmcnt mechanism actuatcd by said keyboard mechanism For controlling the delivery of matrices from the magazine. and means controlled by the posirion occupied by the magazine for locking the keyboard mechanism 't'rom operation.

2. in a linotype machine. the combination of a keyboard mechanism. a removable matrix magazine. cscapcmcnt mechanism actuated by said kcvboard mechanism for corn trolling the dclivcrv oi? matrices from the i'nagazinc. and locking: means controlled by the manazine for preventing operation of the keyboard except while the magazine is in operative position.

in a linotype machine. the combination of a keyboard mechanism. a removable matrix magazine. cscapemcnt mechanism actuatcd by said kovboard mechanism for controlling the delivery oi matrices from the magazine. locking means to prevent actuation oi the keyboard mechanism, and means For automatically causing; said locking means to lock the keyboard mechanism from operation when the magazine is removed from operative position and for causing said. locking means to unlock the keyboard mechanism when the magazine is placed in operative position.

4. in a linotype machine, the combination of a keyboard mechanism, a removable ma.- trix magazine. eseapement mechanism actuated bysaid keyboard mechanism for controlling the delivery of matrices from the magazine, and locking means normally tend,

ing to prevent actuation of the keyboar mechanlsm and -'restra1ned by the magazine While thelatter 1s in operative position.

ias

actuation of the keyboard anal eutomafiieelly 5. In a linotype machine the combination causing the locking means 30 iGCK the of a keyboard mechanism, a removable matrix magazine, escapement mechanism ache hoax-(i when the magazine is remove. ated by said keyboard mechanism for 0011- In testimony whereof ll have hereunto a trolling the delivery of matrices from the I my hand in presence of two subscribing Wit- 3.2a

magazine, locking means normally tending messes. to lock the keyboard mechanism from operation, and means operative automatically by: a magazine when placed in operative posi- 2m tion to retract the locking means and permit;

YV-UGLMAN G. 

